ASTM D3336-20b
(Test Method)Standard Test Method for Life of Lubricating Greases in Ball Bearings at Elevated Temperatures
Standard Test Method for Life of Lubricating Greases in Ball Bearings at Elevated Temperatures
SIGNIFICANCE AND USE
4.1 This test method can be used to evaluate the ability of grease to provide adequate lubrication for extended periods of ball bearings operating under light loads at high speeds and elevated temperatures.
SCOPE
1.1 This test method covers the evaluation of the performance of lubricating greases in ball bearings operating under light loads at high speeds and elevated temperatures.
1.2 The values stated in SI units are to be regarded as standard.
1.2.1 Exception—The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see 8.1.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
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Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D3336 − 20b
Standard Test Method for
Life of Lubricating Greases in Ball Bearings at Elevated
1
Temperatures
This standard is issued under the fixed designation D3336; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 3. Summary of Test Method
1.1 This test method covers the evaluation of the perfor- 3.1 A grease lubricated SAE No. 204 size ball bearing is
mance of lubricating greases in ball bearings operating under rotated at 10 000 r/min under light load at a specified elevated
light loads at high speeds and elevated temperatures. temperature. Tests are continued until failure or completion of
a specified number of hours of running time.
1.2 The values stated in SI units are to be regarded as
standard.
4. Significance and Use
1.2.1 Exception—The values given in parentheses are math-
4.1 This test method can be used to evaluate the ability of
ematical conversions to inch-pound units that are provided for
grease to provide adequate lubrication for extended periods of
information only and are not considered standard.
ball bearings operating under light loads at high speeds and
1.3 This standard does not purport to address all of the
elevated temperatures.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 4,5
5. Apparatus
priate safety, health, and environmental practices and deter-
6
5.1 Test Spindle (see Figs. 1-4), capable of operating at
mine the applicability of regulatory limitations prior to use.
speeds of 10 000 r⁄min and temperatures as high as 371 °C
For specific warning statements, see 8.1.
(700 °F).The test bearing seat dimension shall be 19.99 mm to
1.4 This international standard was developed in accor-
20.00 mm (0.7870 in. to 0.7874 in.). For spindles having the
dance with internationally recognized principles on standard-
test bearing and the support bearing in the same housing (CRC
ization established in the Decision on Principles for the
Type, Fig. 1, Fig. 2, and Fig. 4) the internal construction of the
Development of International Standards, Guides and Recom-
spindle shall be such that the outboard support bearing, or both
mendations issued by the World Trade Organization Technical
bearings are free to float axially in the housing. In designs
Barriers to Trade (TBT) Committee.
where both bearings are free to float, the spindle shaft shall
havea0.508 mmto0.762 mm(0.020 in.to0.030 in.)freeaxial
2. Referenced Documents
movement or end play. The outboard bearing seat dimension
2
2.1 ASTM Standards:
should be 19.99 mm to 20.00 mm (0.7870 in. to 0.7874 in.).
A600 Specification for Tool Steel High Speed
5.1.1 The test unit design should be such that a finger spring
3
2.2 ABMA Standard: washer(Fig.1)andaZ-Springwasher(Fig.2)producesa22 N
Standard 4, Tolerance Definitions and Gaging Practices for
to 67 N (5 lbf to 15 lbf) thrust load on the floating outboard
7,5
Ball and Roller Bearings support bearing.
5.2 Bearing Housing:
1
This test method is under the jurisdiction of ASTM Committee D02 on
4
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Complete apparatus is available from Falex Corp., 1020 Airpark Dr., Sugar
Subcommittee D02.G0.05 on Functional Tests - Temperature. Grove, IL 60554.
5
Current edition approved Nov. 1, 2020. Published November 2020. Originally If you are aware of alternative suppliers, please provide this information to
approved in 1975. Last previous edition approved in 2020 as D3336 – 20a. DOI: ASTM International Headquarters. Your comments will receive careful consider-
1
10.1520/D3336-20B. ation at a meeting of the responsible technical committee, which you may attend.
2 6
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Pope Machinery Corporation GreaseTest Spindles No. P-1911 or P-6301A-HT
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM (Fig. 1) and No. P-7605-B (Fig. 2); and Falex Corp. spindles of the type shown in
Standards volume information, refer to the standard’s Document Summary page on Fig. 1 and Fig. 3 have been found satisfactory for this purpose.
7
the ASTM website. The sole source of supply of the apparatus known to the committee at this time
3
Available fromAmerican Bearing ManufacturersAssoc., 2025 M St., NW, Ste is Falex Part No. 643-187-07
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D3336 − 20a D3336 − 20b
Standard Test Method for
Life of Lubricating Greases in Ball Bearings at Elevated
1
Temperatures
This standard is issued under the fixed designation D3336; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This test method covers the evaluation of the performance of lubricating greases in ball bearings operating under light loads
at high speeds and elevated temperatures.
1.2 The values stated in SI units are to be regarded as standard.
1.2.1 Exception—The values given in parentheses are mathematical conversions to inch-pound units that are provided for
information only and are not considered standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of
regulatory limitations prior to use. For specific warning statements, see 8.1.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
A600 Specification for Tool Steel High Speed
3
2.2 ABMA Standard:
Standard 4, Tolerance Definitions and Gaging Practices for Ball and Roller Bearings
3. Summary of Test Method
3.1 A grease lubricated SAE No. 204 size ball bearing is rotated at 10 000 r/min under light load at a specified elevated
temperature. Tests are continued until failure or completion of a specified number of hours of running time.
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.G0.05 on Functional Tests - Temperature.
Current edition approved July 1, 2020Nov. 1, 2020. Published July 2020November 2020. Originally approved in 1975. Last previous edition approved in 2020 as
D3336 – 20.D3336 – 20a. DOI: 10.1520/D3336-20A.10.1520/D3336-20B.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American Bearing Manufacturers Assoc., 2025 M St., NW, Ste 800, Washington, DC 20036.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D3336 − 20b
FIG. 1 Test Spindle (Both Bearings Floating)
4. Significance and Use
4.1 This test method can be used to evaluate the ability of grease to provide adequate lubrication for extended periods of ball
bearings operating under light loads at high speeds and elevated temperatures.
4,5
5. Apparatus
6
5.1 Test Spindle (see Figs. 1-4), capable of operating at speeds of 10 000 r ⁄min and temperatures as high as 371 °C (700 °F). The
test bearing seat dimension shall be 19.99 mm to 20.00 mm (0.7870 in. to 0.7874 in.). For spindles having the test bearing and the
support bearing in the same housing (CRC Type, Figs. 1-3Fig. 1, Fig. 2, and Fig. 4) the internal construction of the spindle shall
be such that the outboard support bearing, or both bearings are free to float axially in the housing. In designs where both bearings
are free to float, the spindle shaft shall have a 0.508 mm to 0.762 mm (0.020 in. to 0.030 in.) free axial movement or end play. The
outboard bearing seat dimension should be 19.99 mm to 20.00 mm (0.7870 in. to 0.7874 in.).
5.1.1 The test unit design should be such that a finger spring washer (Fig. 1) and Fig. 2) should be sucha Z-Spring washer (Fig.
7,5
2 that a finger spring washer ) produces a 22 N to 67 N (5 lbf to 15 lbf) thrust load on the floating outboard support bearing.
5.2 Bearing Housing:
5.2.1 For CRC Type Spindles—The bearing housing diameter shall be 47.005 mm to 47.021
...
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